Table V.

Difference of distribution of CXCL12-801G/A polymorphism by age in CRC patients and healthy controls

Variable	30 < Age ≤ 50		50 < Age ≤ 70		70 < Age ≤ 90		Value of p
	No.	No. of SNP	No.	No. of SNP	No.	No. of SNP
CRC patients	104	32	122	63	32	22	0.0148*
Controls	127	17	132	23	41	12	0.2353
Value of p		0.0774		0.0488*		0.0315*